OpenHardwareExG_ActiveElectrode.sch

EESchema Schematic File Version 2
LIBS:OpenHardwareExG_ActiveElectrode-rescue
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:opamps_OEL
LIBS:OpenHardwareExG_ActiveElectrode-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date "31 oct 2015"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L CONN_1 P1
U 1 1 561BF6C8
P 4400 2750
F 0 "P1" H 4480 2750 40  0000 L CNN
F 1 "CONN_1" H 4400 2805 30  0001 C CNN
F 2 "electrode_pad:electrode_pad" H 4400 2750 60  0001 C CNN
F 3 "" H 4400 2750 60  0000 C CNN
	1    4400 2750
	-1   0    0    -1  
$EndComp
Text Label 8050 2850 2    30   ~ 0
LINE_OUT
$Comp
L LMP7721 U2
U 1 1 562BC511
P 6300 2850
F 0 "U2" H 6300 3000 60  0000 L CNN
F 1 "LMP7721" H 6300 2700 60  0000 L CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 6300 2850 60  0001 C CNN
F 3 "~" H 6300 2850 60  0000 C CNN
	1    6300 2850
	1    0    0    -1  
$EndComp
$Comp
L R-RESCUE-OpenHardwareExG_ActiveElectrode R3
U 1 1 562BCC14
P 5150 2750
F 0 "R3" V 5230 2750 40  0000 C CNN
F 1 "100" V 5157 2751 40  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 5080 2750 30  0001 C CNN
F 3 "~" H 5150 2750 30  0000 C CNN
	1    5150 2750
	0    -1   -1   0   
$EndComp
$Comp
L GND-RESCUE-OpenHardwareExG_ActiveElectrode #PWR01
U 1 1 562BCC4F
P 6250 3300
F 0 "#PWR01" H 6250 3300 30  0001 C CNN
F 1 "GND" H 6250 3230 30  0001 C CNN
F 2 "" H 6250 3300 60  0000 C CNN
F 3 "" H 6250 3300 60  0000 C CNN
	1    6250 3300
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR02
U 1 1 562BCC70
P 6250 2000
F 0 "#PWR02" H 6250 2090 20  0001 C CNN
F 1 "+5V" H 6250 2090 30  0000 C CNN
F 2 "" H 6250 2000 60  0000 C CNN
F 3 "" H 6250 2000 60  0000 C CNN
	1    6250 2000
	1    0    0    -1  
$EndComp
$Comp
L GND-RESCUE-OpenHardwareExG_ActiveElectrode #PWR03
U 1 1 562BCC93
P 6450 2600
F 0 "#PWR03" H 6450 2600 30  0001 C CNN
F 1 "GND" H 6450 2530 30  0001 C CNN
F 2 "" H 6450 2600 60  0000 C CNN
F 3 "" H 6450 2600 60  0000 C CNN
	1    6450 2600
	1    0    0    -1  
$EndComp
$Comp
L C-RESCUE-OpenHardwareExG_ActiveElectrode C3
U 1 1 562BCCA2
P 6450 2300
F 0 "C3" H 6450 2400 40  0000 L CNN
F 1 "1uF" H 6456 2215 40  0000 L CNN
F 2 "Capacitors_SMD:C_0402" H 6488 2150 30  0001 C CNN
F 3 "~" H 6450 2300 60  0000 C CNN
	1    6450 2300
	1    0    0    -1  
$EndComp
$Comp
L LMP7715 U1
U 1 1 562BD13E
P 4350 3800
F 0 "U1" H 4350 3950 60  0000 L CNN
F 1 "LMP7715" H 4350 3650 60  0000 L CNN
F 2 "TO_SOT_Packages_SMD:SOT-23-5" H 4350 3800 60  0001 C CNN
F 3 "" H 4350 3800 60  0000 C CNN
	1    4350 3800
	-1   0    0    -1  
$EndComp
$Comp
L R-RESCUE-OpenHardwareExG_ActiveElectrode R1
U 1 1 562BD60D
P 3850 3400
F 0 "R1" V 3930 3400 40  0000 C CNN
F 1 "100" V 3857 3401 40  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 3780 3400 30  0001 C CNN
F 3 "~" H 3850 3400 30  0000 C CNN
	1    3850 3400
	-1   0    0    1   
$EndComp
$Comp
L R-RESCUE-OpenHardwareExG_ActiveElectrode R2
U 1 1 562BD6E7
P 4450 4500
F 0 "R2" V 4530 4500 40  0000 C CNN
F 1 "10k" V 4457 4501 40  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 4380 4500 30  0001 C CNN
F 3 "~" H 4450 4500 30  0000 C CNN
	1    4450 4500
	0    -1   -1   0   
$EndComp
$Comp
L C-RESCUE-OpenHardwareExG_ActiveElectrode C1
U 1 1 562BD6F6
P 4450 4750
F 0 "C1" H 4450 4850 40  0000 L CNN
F 1 "1nF" H 4456 4665 40  0000 L CNN
F 2 "Capacitors_SMD:C_0201" H 4488 4600 30  0001 C CNN
F 3 "~" H 4450 4750 60  0000 C CNN
	1    4450 4750
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6650 2850 7150 2850
Connection ~ 6900 2850
Wire Wire Line
	5950 2950 5850 2950
Wire Wire Line
	5850 2950 5850 3700
Wire Wire Line
	6900 3700 6900 2850
Wire Wire Line
	5400 2750 5950 2750
Wire Wire Line
	4900 2750 4550 2750
Wire Wire Line
	6250 3150 6250 3300
Wire Wire Line
	6250 2000 6250 2550
Wire Wire Line
	6450 2100 6450 2050
Wire Wire Line
	6250 2050 6750 2050
Connection ~ 6250 2050
Wire Wire Line
	6450 2500 6450 2600
Wire Wire Line
	3850 2500 6200 2500
Wire Wire Line
	3850 2500 3850 3150
Wire Wire Line
	3850 2850 6200 2850
Wire Wire Line
	6200 2500 6200 3200
Connection ~ 6150 2500
Connection ~ 6200 2850
Wire Wire Line
	6200 3200 6150 3200
Wire Wire Line
	3850 3650 3850 4750
Wire Wire Line
	3850 3800 4000 3800
$Comp
L GND-RESCUE-OpenHardwareExG_ActiveElectrode #PWR04
U 1 1 562BD728
P 4450 4200
F 0 "#PWR04" H 4450 4200 30  0001 C CNN
F 1 "GND" H 4450 4130 30  0001 C CNN
F 2 "" H 4450 4200 60  0000 C CNN
F 3 "" H 4450 4200 60  0000 C CNN
	1    4450 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	3850 4750 4250 4750
Connection ~ 3850 3800
Wire Wire Line
	4900 4750 4650 4750
Wire Wire Line
	4900 3900 4900 4750
Wire Wire Line
	4900 3900 4700 3900
Wire Wire Line
	4700 4500 4900 4500
Connection ~ 4900 4500
Wire Wire Line
	3850 4500 4200 4500
Connection ~ 3850 4500
Wire Wire Line
	4450 4100 4450 4200
$Comp
L GND-RESCUE-OpenHardwareExG_ActiveElectrode #PWR05
U 1 1 562BD7FE
P 4750 3550
F 0 "#PWR05" H 4750 3550 30  0001 C CNN
F 1 "GND" H 4750 3480 30  0001 C CNN
F 2 "" H 4750 3550 60  0000 C CNN
F 3 "" H 4750 3550 60  0000 C CNN
	1    4750 3550
	1    0    0    -1  
$EndComp
$Comp
L C-RESCUE-OpenHardwareExG_ActiveElectrode C2
U 1 1 562BD80D
P 4750 3250
F 0 "C2" H 4750 3350 40  0000 L CNN
F 1 "1uF" H 4756 3165 40  0000 L CNN
F 2 "Capacitors_SMD:C_0402" H 4788 3100 30  0001 C CNN
F 3 "~" H 4750 3250 60  0000 C CNN
	1    4750 3250
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR06
U 1 1 562BD81C
P 4450 3000
F 0 "#PWR06" H 4450 3090 20  0001 C CNN
F 1 "+5V" H 4450 3090 30  0000 C CNN
F 2 "" H 4450 3000 60  0000 C CNN
F 3 "" H 4450 3000 60  0000 C CNN
	1    4450 3000
	1    0    0    -1  
$EndComp
$Comp
L R-RESCUE-OpenHardwareExG_ActiveElectrode R4
U 1 1 562BD99F
P 5550 3700
F 0 "R4" V 5630 3700 40  0000 C CNN
F 1 "10k" V 5557 3701 40  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 5480 3700 30  0001 C CNN
F 3 "~" H 5550 3700 30  0000 C CNN
	1    5550 3700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4450 3050 4750 3050
Wire Wire Line
	4450 3000 4450 3500
Connection ~ 4450 3050
Wire Wire Line
	4700 3700 5300 3700
Wire Wire Line
	5800 3700 6900 3700
Connection ~ 5850 3700
Connection ~ 3850 2850
$Comp
L CONN_3 K1
U 1 1 562BDE68
P 8550 2850
F 0 "K1" V 8500 2850 50  0000 C CNN
F 1 "CONN_3" V 8600 2850 40  0000 C CNN
F 2 "active_electrode_connectors:DF50A-3P-1H" H 8550 2850 60  0001 C CNN
F 3 "" H 8550 2850 60  0000 C CNN
	1    8550 2850
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR07
U 1 1 562BDEAA
P 7950 2550
F 0 "#PWR07" H 7950 2640 20  0001 C CNN
F 1 "+5V" H 7950 2640 30  0000 C CNN
F 2 "" H 7950 2550 60  0000 C CNN
F 3 "" H 7950 2550 60  0000 C CNN
	1    7950 2550
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG08
U 1 1 562BDEB9
P 8150 2550
F 0 "#FLG08" H 8150 2645 30  0001 C CNN
F 1 "PWR_FLAG" H 8150 2730 30  0000 C CNN
F 2 "" H 8150 2550 60  0000 C CNN
F 3 "" H 8150 2550 60  0000 C CNN
	1    8150 2550
	1    0    0    -1  
$EndComp
$Comp
L GND-RESCUE-OpenHardwareExG_ActiveElectrode #PWR09
U 1 1 562BDED2
P 7950 3350
F 0 "#PWR09" H 7950 3350 30  0001 C CNN
F 1 "GND" H 7950 3280 30  0001 C CNN
F 2 "" H 7950 3350 60  0000 C CNN
F 3 "" H 7950 3350 60  0000 C CNN
	1    7950 3350
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG010
U 1 1 562BDEE1
P 8150 3250
F 0 "#FLG010" H 8150 3345 30  0001 C CNN
F 1 "PWR_FLAG" H 8150 3430 30  0000 C CNN
F 2 "" H 8150 3250 60  0000 C CNN
F 3 "" H 8150 3250 60  0000 C CNN
	1    8150 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	7950 2950 7950 3350
Wire Wire Line
	7950 2950 8200 2950
Wire Wire Line
	8150 3250 7950 3250
Connection ~ 7950 3250
Wire Wire Line
	7950 2550 7950 2750
Wire Wire Line
	7950 2750 8200 2750
Wire Wire Line
	8150 2550 8150 2750
Connection ~ 8150 2750
$Comp
L C-RESCUE-OpenHardwareExG_ActiveElectrode C4
U 1 1 562BDFAA
P 6750 2300
F 0 "C4" H 6750 2400 40  0000 L CNN
F 1 "10uF" H 6756 2215 40  0000 L CNN
F 2 "Capacitors_SMD:C_0603" H 6788 2150 30  0001 C CNN
F 3 "~" H 6750 2300 60  0000 C CNN
	1    6750 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 2050 6750 2100
Connection ~ 6450 2050
Wire Wire Line
	6750 2500 6750 2550
Wire Wire Line
	6750 2550 6450 2550
Connection ~ 6450 2550
Wire Wire Line
	4750 3450 4750 3550
$Comp
L R-RESCUE-OpenHardwareExG_ActiveElectrode R5
U 1 1 5634E6E4
P 7400 2850
F 0 "R5" V 7480 2850 40  0000 C CNN
F 1 "100" V 7407 2851 40  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 7330 2850 30  0001 C CNN
F 3 "~" H 7400 2850 30  0000 C CNN
	1    7400 2850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7650 2850 8200 2850
Text Notes 7050 3200 0    40   ~ 0
Data sheet rec 100 ohm.\nConsider placing 0 ohm \nto see if resistor leads \nto noise.
Text Label 6200 3700 0    30   ~ 0
BUFFERED_INPUT
Text Label 4800 3700 0    30   ~ 0
GUARD_RING_INPUT
Text Label 4900 3950 3    30   ~ 0
GUARD_RING_FILTERED_FEEDBACK
Text Label 3850 4450 1    30   ~ 0
GUARD_RING_DRIVER
Text Label 4900 2500 0    30   ~ 0
GUARD_RING
Text Label 4600 2750 0    30   ~ 0
ELECTRODE
Text Label 5400 2750 0    30   ~ 0
PROTECTED_ELECTRODE
$EndSCHEMATC